%PRECIPITATION FREQUENCY ESTIMATES				
% by duration for ARI (years):							
rain_pds = [
0       1       2       5       10      25      50      100     200     500     1000	%Duration / Return Period
5       0.321	0.378	0.473	0.554	0.667	0.756	0.847	0.94	1.07	1.16	%5-min
10      0.47	0.554	0.693	0.811	0.977	1.11	1.24	1.38	1.56	1.70	%10-min
15      0.574	0.676	0.846	0.989	1.19	1.35	1.51	1.68	1.90	2.08	%15-min
30      0.768	0.906	1.14	1.33	1.61	1.83	2.05	2.29	2.60	2.85	%30-min
60      0.969	1.14	1.44	1.70	2.07	2.38	2.69	3.02	3.48	3.84	%60-min
120     1.17	1.38	1.75	2.07	2.54	2.92	3.33	3.76	4.36	4.83	%2-hr
180     1.3     1.53	1.93	2.29	2.82	3.27	3.74	4.24	4.96	5.53	%3-hr
360     1.55	1.79	2.22	2.62	3.23	3.75	4.31	4.92	5.79	6.50	%6-hr
720     1.82	2.06	2.50	2.91	3.54	4.09	4.68	5.34	6.28	7.05	%12-hr
1440	2.09	2.35	2.83	3.26	3.93	4.50	5.11	5.78	6.74	7.52	%24-hr
2880	2.37	2.69	3.26	3.76	4.50	5.12	5.76	6.45	7.42	8.20	%2-day
4320	2.59	2.93	3.52	4.04	4.81	5.44	6.10	6.81	7.80	8.59	%3-day
5760	2.79	3.14	3.74	4.28	5.06	5.71	6.38	7.11	8.12	8.92	%4-day
10080	3.31	3.70	4.36	4.94	5.79	6.48	7.20	7.96	9.02	9.86	%7-day
14400	3.77	4.19	4.92	5.54	6.44	7.17	7.93	8.72	9.81	10.7	%10-day
28800	5.12	5.64	6.50	7.24	8.27	9.09	9.92	10.8	11.9	12.8	%20-day
43200	6.29	6.91	7.92	8.75	9.90	10.8	11.7	12.5	13.7	14.6	%30-day
64800	7.83	8.60	9.82	10.8	12.1	13.1	14.0	14.9	16.1	16.9	%45-day
86400	9.18	10.1	11.5	12.7	14.1	15.1	16.1	17.0	18.1	18.9	%60-day
];
											
%PRECIPITATION FREQUENCY ESTIMATES AT UPPER BOUND OF 90% CONFIDENCE INTERVAL							
% by duration for ARI (years):				
rain_pds_upper = [
0       1       2       5       10      25      50      100     200     500     1000	%Duration / Return Period
5       0.368	0.433	0.543	0.638	0.791	0.907	1.04	1.18	1.37	1.51	%5-min
10      0.538	0.635	0.796	0.935	1.16	1.33	1.52	1.73	2.01	2.22	%10-min
15      0.656	0.774	0.971	1.14	1.41	1.62	1.85	2.11	2.45	2.70	%15-min
30      0.879	1.04	1.31	1.54	1.91	2.20	2.52	2.87	3.34	3.70	%30-min
60      1.11	1.31	1.65	1.96	2.47	2.86	3.31	3.80	4.48	5.00	%60-min
120     1.33	1.57	1.99	2.37	3.02	3.51	4.07	4.71	5.59	6.25	%2-hr
180     1.47	1.73	2.19	2.61	3.35	3.91	4.57	5.31	6.34	7.12	%3-hr
360     1.74	2.01	2.51	2.97	3.83	4.48	5.25	6.12	7.37	8.31	%6-hr
720     2.04	2.30	2.80	3.27	4.17	4.85	5.67	6.61	7.95	8.96	%12-hr
1440	2.33	2.61	3.15	3.65	4.58	5.29	6.13	7.10	8.46	9.50	%24-hr
2880	2.61	2.97	3.60	4.17	5.18	5.95	6.84	7.84	9.23	10.3	%2-day
4320	2.84	3.22	3.88	4.47	5.51	6.29	7.21	8.24	9.65	10.7	%3-day
5760	3.06	3.44	4.11	4.71	5.78	6.58	7.52	8.57	10.0	11.1	%4-day
10080	3.60	4.03	4.76	5.42	6.56	7.42	8.42	9.53	11.1	12.2	%7-day
14400	4.09	4.56	5.35	6.06	7.26	8.17	9.23	10.4	12.0	13.2	%10-day
28800	5.52	6.08	7.03	7.85	9.22	10.3	11.4	12.7	14.4	15.7	%20-day
43200	6.75	7.42	8.52	9.46	10.9	12.1	13.3	14.7	16.5	17.8	%30-day
64800	8.37	9.20	10.5	11.6	13.3	14.5	15.9	17.4	19.2	20.5	%45-day
86400	9.79	10.8	12.3	13.6	15.4	16.8	18.2	19.7	21.5	22.9	%60-day
];


%PRECIPITATION FREQUENCY ESTIMATES AT LOWER BOUND OF 90% CONFIDENCE INTERVAL							
% by duration for ARI (years):				
rain_pds_lower = [
0       1       2       5       10      25      50      100     200     500     1000	%Duration / Return Period
5       0.284	0.334	0.417	0.485	0.565	0.626	0.677	0.722	0.787	0.837	%5-min
10      0.416	0.489	0.61	0.71	0.827	0.916	0.992	1.06	1.15	1.23	%10-min
15      0.507	0.597	0.744	0.866	1.01	1.12	1.21	1.29	1.41	1.50	%15-min
30      0.679	0.08	1.00	1.17	1.37	1.52	1.64	1.76	1.92	2.05	%30-min
60      0.856	1.01	1.27	1.49	1.76	1.97	2.16	2.32	2.57	2.76	%60-min
120 	1.04	1.23	1.55	1.82	2.17	2.44	2.69	2.91	3.25	3.50	%2-hr
180 	1.16	1.36	1.71	2.02	2.43	2.74	3.03	3.30	3.71	4.02	%3-hr
360 	1.39	1.60	1.99	2.33	2.81	3.18	3.53	3.86	4.37	4.75	%6-hr
720     1.64	1.86	2.24	2.60	3.10	3.48	3.86	4.22	4.77	5.19	%12-hr
1440	1.90	2.13	2.55	2.93	3.46	3.85	4.23	4.60	5.16	5.58	%24-hr
2880	2.16	2.45	2.96	3.40	3.97	4.40	4.79	5.15	5.70	6.12	%2-day
4320	2.37	2.68	3.21	3.67	4.25	4.69	5.09	5.46	6.02	6.44	%3-day
5760	2.56	2.88	3.42	3.89	4.48	4.93	5.34	5.71	6.28	6.71	%4-day
10080	3.05	3.40	4.00	4.51	5.15	5.63	6.05	6.43	7.01	7.45	%7-day
14400	3.49	3.87	4.53	5.08	5.74	6.24	6.68	7.06	7.65	8.10	%10-day
28800	4.76	5.24	6.02	6.67	7.40	7.95	8.39	8.77	9.35	9.80	%20-day
43200	5.87	6.44	7.36	8.09	8.86	9.45	9.89	10.2	10.8	11.2	%30-day
64800	7.34	8.05	9.16	10.0	10.9	11.5	11.9	12.2	12.6	13.0	%45-day
86400	8.62	9.48	10.8	11.8	12.6	13.3	13.7	13.9	14.3	14.6	%60-day
];